Reduction and Functional Exhaustion of T Cells in Patients With Coronavirus Disease 2019 (COVID-19) oleh Bo Diao, Chenhui Wang, Yingjun Tan, Xiewan Chen, Ying Liu, Lifen Ning, Li Chen, Min Li, Yueping Liu, Gang Wang, Zilin Yuan, Zeqing Feng, Yi Zhang, Yuzhang Wu, Yongwen Chen